MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d7c338d0bcaed7ade090437193a0f32ea7d5059da26ac20c06d1bda5443746c4. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Chaos


Vendor detections: 12


Intelligence 12 IOCs YARA 8 File information Comments
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SHA256 hash: d7c338d0bcaed7ade090437193a0f32ea7d5059da26ac20c06d1bda5443746c4
SHA3-384 hash: e1bb1c16e334531abb36a34ab6b2e3bd5f0c159591a3ef5754638992fb59468bce1feff6c619dea48cf5b0654f3b0e3c
SHA1 hash: 269ea1637981689059c1b1201efebd0097b2ae54
MD5 hash: ac657f1cb12fd6d1506c98f8256af7f5
humanhash: mountain-paris-vermont-emma
File name:HEUR-Trojan-Ransom.MSIL.Agent.gen-d7c338d0bcaed7ade090437193a0f32ea7d5059da26ac20c06d1bda5443746c4
Download: download sample
Signature Chaos
Create hunting rule
File size:68'096 bytes
First seen:2022-09-20 05:02:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:ko2AH75GNiVr92Sa/dWPAZHYlYgbUMe67SYDi3Cph2eXPxUFKZlavN:koLbANiVr92vd+uHW34MzDhh23KZiN
Threatray 2'587 similar samples on MalwareBazaar
TLSH T12F6393243AFB9019F2B3FF755FE0B5D79E6EB6333A0A945D1091034A4623A80DD9163A
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter petikvx
Tags:Chaos exe petikvx Ransomware

Intelligence

File Origin
# of uploads :
1
# of downloads :
382
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Randomware.exe
Verdict:
Malicious activity
Analysis date:
2022-09-19 04:25:13 UTC
Tags:
ransomware
Link:
https://app.any.run/tasks/9330abf4-a04b-49d4-8aa3-e05a38c780be

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/311525/
Detection(s):
Win.Ransomware.Hydracrypt-9878672-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Сreating synchronization primitives
Creating a process from a recently created file
Creating a file
Moving a recently created file
Changing a file
Reading critical registry keys
Creating a file in the %AppData% subdirectories
Moving a file to the %AppData% subdirectory
Unauthorized injection to a recently created process
Creating a file in the mass storage device
Stealing user critical data
Enabling autorun by creating a file
Encrypting user's files
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
cmd.exe packed ransomware
Link:
https://www.filescan.io/uploads/632949d3b333b2ec6b3888d5/reports/e15c7d06-3ad5-4d5e-9751-22d9b2ccd69e/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
CHAOS Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2d0ce1c0-549e-414f-a341-bb450e52689c
Result
Threat name:
Chaos, TrojanRansom
Create hunting rule
Detection:
malicious
Classification:
rans.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1073387
Signature
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates files inside the volume driver (system volume information)
Deletes shadow drive data (may be related to ransomware)
Deletes the backup plan of Windows
Drops PE files with benign system names
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May disable shadow drive data (uses vssadmin)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Delete shadow copy via WMIC
Sigma detected: Drops script at startup location
Uses bcdedit to modify the Windows boot settings
Writes a notice file (html or txt) to demand a ransom
Yara detected Chaos Ransomware
Yara detected TrojanRansom
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 705929 Sample: 443746c4.exe Startdate: 20/09/2022 Architecture: WINDOWS Score: 100 79 Malicious sample detected (through community Yara rule) 2->79 81 Antivirus / Scanner detection for submitted sample 2->81 83 Multi AV Scanner detection for submitted file 2->83 85 7 other signatures 2->85 8 443746c4.exe 4 2->8         started        12 svchost.exe 3 22 2->12         started        14 wbengine.exe 2->14         started        16 4 other processes 2->16 process3 file4 73 C:\Users\user\AppData\Roaming\svchost.exe, PE32 8->73 dropped 75 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 8->75 dropped 77 C:\Users\user\AppData\...\443746c4.exe.log, ASCII 8->77 dropped 103 Drops PE files with benign system names 8->103 18 svchost.exe 35 8->18         started        105 Deletes shadow drive data (may be related to ransomware) 12->105 107 Uses bcdedit to modify the Windows boot settings 12->107 22 cmd.exe 1 12->22         started        24 cmd.exe 12->24         started        26 cmd.exe 12->26         started        28 notepad.exe 12->28         started        109 Creates files inside the volume driver (system volume information) 14->109 signatures5 process6 file7 65 C:\Users\user\Links\read_it.txt, ASCII 18->65 dropped 67 C:\Users\user\Desktop\read_it.txt, ASCII 18->67 dropped 69 C:\Users\user\Desktop\...\read_it.txt, ASCII 18->69 dropped 71 11 other malicious files 18->71 dropped 87 Antivirus detection for dropped file 18->87 89 Multi AV Scanner detection for dropped file 18->89 91 Machine Learning detection for dropped file 18->91 101 2 other signatures 18->101 30 cmd.exe 18->30         started        33 cmd.exe 18->33         started        35 cmd.exe 18->35         started        37 notepad.exe 18->37         started        93 May disable shadow drive data (uses vssadmin) 22->93 95 Deletes shadow drive data (may be related to ransomware) 22->95 97 Uses bcdedit to modify the Windows boot settings 22->97 39 WMIC.exe 1 22->39         started        41 conhost.exe 22->41         started        43 vssadmin.exe 1 22->43         started        45 3 other processes 24->45 99 Deletes the backup plan of Windows 26->99 47 2 other processes 26->47 signatures8 process9 signatures10 111 May disable shadow drive data (uses vssadmin) 30->111 113 Deletes shadow drive data (may be related to ransomware) 30->113 49 conhost.exe 30->49         started        51 vssadmin.exe 1 30->51         started        53 WMIC.exe 30->53         started        115 Uses bcdedit to modify the Windows boot settings 33->115 55 conhost.exe 33->55         started        57 bcdedit.exe 33->57         started        59 bcdedit.exe 33->59         started        117 Deletes the backup plan of Windows 35->117 61 conhost.exe 35->61         started        63 wbadmin.exe 35->63         started        process11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d7c338d0bcaed7ade090437193a0f32ea7d5059da26ac20c06d1bda5443746c4/
Threat name:
ByteCode-MSIL.Ransomware.HydraCrypt
Create hunting rule
Status:
Malicious
First seen:
2021-09-15 17:41:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=27btruf4v3l23yeqinyzhihtf2t5kbm5ujvmedag2g62krbxi3ca._file
Verdict:
malicious
Similar samples:
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Chaos
543e39242762d61e740f9c22c173f914cf01dd88c22ad61e65d2c18d9f5162ca
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739b133a8f133943739c64ad32d4fafa701c2d89270c938db14f995f0abcdd70
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93a4d36a6e6ae87c790522b78f581e871cfec793e301c54e7a596c9561f9313c
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Chaos
+ 2'577 additional samples on MalwareBazaar
Result
Malware family:
chaos
Create hunting rule
Score:
  10/10
Tags:
family:chaos evasion ransomware spyware stealer
Link:
https://tria.ge/reports/220920-fppleafehj/
Behaviour
Checks SCSI registry key(s)
Interacts with shadow copies
Modifies registry class
Opens file in notepad (likely ransom note)
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Sets desktop wallpaper using registry
Drops desktop.ini file(s)
Checks computer location settings
Drops startup file
Reads user/profile data of web browsers
Deletes backup catalog
Executes dropped EXE
Modifies extensions of user files
Deletes shadow copies
Modifies boot configuration data using bcdedit
Chaos
Chaos Ransomware
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f8ed430f-24b6-41c5-a11d-1afeb1460edc
Unpacked files
SH256 hash:
d7c338d0bcaed7ade090437193a0f32ea7d5059da26ac20c06d1bda5443746c4
MD5 hash:
ac657f1cb12fd6d1506c98f8256af7f5
SHA1 hash:
269ea1637981689059c1b1201efebd0097b2ae54
Link:
https://www.unpac.me/results/aa90f179-ed99-48d8-8dcd-26101b442045/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/d7c338d0bcae/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/d7c338d0bcaed7ade090437193a0f32ea7d5059da26ac20c06d1bda5443746c4

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Destructive_Ransomware_Gen1
Create hunting rule
Author:Florian Roth
Description:Detects destructive malware
Reference:http://blog.talosintelligence.com/2018/02/olympic-destroyer.html
Rule name:Destructive_Ransomware_Gen1_RID31CB
Create hunting rule
Author:Florian Roth
Description:Detects destructive malware
Reference:http://blog.talosintelligence.com/2018/02/olympic-destroyer.html
Rule name:INDICATOR_KB_ID_Ransomware_Chaos
Create hunting rule
Author:ditekShen
Description:Detects files referencing identities associated with Chaos ransomware
Rule name:INDICATOR_SUSPICIOUS_GENRansomware
Create hunting rule
Author:ditekSHen
Description:detects command variations typically used by ransomware
Rule name:MALWARE_Win_Chaos
Create hunting rule
Author:ditekSHen
Description:Detects Chaos ransomware
Rule name:pe_imphash
Create hunting rule
Rule name:RansomwareTest6
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/311525/

Comments